Home / 121,067.87-181,638.86-61,945.56

Finding the Fourth Proportional to 121,067.87, 181,638.86 and 61,945.56

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Solution

The fourth proportional to 121,067.87, 181,638.86 and 61,945.56 is: 92,937.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,067.87 : 181,638.86 = 61,945.56 : x
  2. Step 2: Convert to fraction form
    121,067.87/181,638.86 = 61,945.56/x
  3. Step 3: Cross multiply
    121,067.87x = 181,638.86 × 61,945.56
  4. Step 4: Simplify right side
    121,067.87x = 11,251,720,590.73
  5. Step 5: Solve for x
    x = 11,251,720,590.73/121,067.87
  6. Step 6: Final answer
    x = 92,937.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.